Logan County, Illinois
Local growing conditions for Logan County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 14 ZIP codes in our data.
Hardiness zones in Logan County
Logan County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Logan County for its live forecast, frost dates, and planting calendar:
Atlanta 61723
Lincoln 61751
Beason 62512
Chestnut 62518
Cornland 62519
Cornland 62541
Latham 62543
Mount Pulaski 62548
Elkhart 62634
Emden 62635
Hartsburg 62643
Lincoln 62656
Middletown 62666
New Holland 62671
More for Illinois
- Agriculture in Illinois
- Frost dates across Illinois
- USDA hardiness zones explained
- Planting calendar by ZIP code
County growing conditions are compiled from our ZIP-code database, USDA hardiness-zone data, and NOAA climate normals. Conditions vary within a county by elevation and local microclimate. Page updated Aug 4, 2026.